伴随季节性流感
With seasonal influenza
以上为机器翻译结果，长、整句建议使用 人工翻译 。
伴随季节性流感，人们大概在4天内出现症状。然而对于这一新的流感应变，潜伏期可能会更长。
With seasonal flu, people develop symptoms within about 4 days. However for this new strain of flu, the incubation period may be longer.
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